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(emit_library_call, emit_library_call_value): 

Handle STACK_BOUNDARY when using push insns.

From-SVN: r3420
This commit is contained in:
Richard Stallman 1993-02-03 23:26:51 +00:00
parent f79322f009
commit 4e7c9a2248
1 changed files with 48 additions and 0 deletions
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48
gcc/expr.c
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@ -2074,7 +2074,10 @@ emit_library_call (va_alist)
va_dcl
{
va_list p;
/* Total size in bytes of all the stack-parms scanned so far. */
struct args_size args_size;
/* Size of arguments before any adjustments (such as rounding). */
struct args_size original_args_size;
register int argnum;
enum machine_mode outmode;
int nargs;
@ -2196,6 +2199,7 @@ emit_library_call (va_alist)
functions, write one out. */
assemble_external_libcall (fun);
original_args_size = args_size;
#ifdef STACK_BOUNDARY
args_size.constant = (((args_size.constant + (STACK_BYTES - 1))
/ STACK_BYTES) * STACK_BYTES);
@ -2219,6 +2223,16 @@ emit_library_call (va_alist)
argblock = push_block (GEN_INT (args_size.constant), 0, 0);
#endif
#ifdef PUSH_ARGS_REVERSED
#ifdef STACK_BOUNDARY
/* If we push args individually in reverse order, perform stack alignment
before the first push (the last arg). */
if (argblock == 0)
anti_adjust_stack (GEN_INT (args_size.constant
- original_args_size.constant));
#endif
#endif
#ifdef PUSH_ARGS_REVERSED
inc = -1;
argnum = nargs - 1;
@ -2242,6 +2256,16 @@ emit_library_call (va_alist)
NO_DEFER_POP;
}
#ifndef PUSH_ARGS_REVERSED
#ifdef STACK_BOUNDARY
/* If we pushed args in forward order, perform stack alignment
after pushing the last arg. */
if (argblock == 0)
anti_adjust_stack (GEN_INT (args_size.constant
- original_args_size.constant));
#endif
#endif
#ifdef PUSH_ARGS_REVERSED
argnum = nargs - 1;
#else
@ -2301,7 +2325,10 @@ emit_library_call_value (va_alist)
va_dcl
{
va_list p;
/* Total size in bytes of all the stack-parms scanned so far. */
struct args_size args_size;
/* Size of arguments before any adjustments (such as rounding). */
struct args_size original_args_size;
register int argnum;
enum machine_mode outmode;
int nargs;
@ -2438,6 +2465,7 @@ emit_library_call_value (va_alist)
functions, write one out. */
assemble_external_libcall (fun);
original_args_size = args_size;
#ifdef STACK_BOUNDARY
args_size.constant = (((args_size.constant + (STACK_BYTES - 1))
/ STACK_BYTES) * STACK_BYTES);
@ -2461,6 +2489,16 @@ emit_library_call_value (va_alist)
argblock = push_block (GEN_INT (args_size.constant), 0, 0);
#endif
#ifdef PUSH_ARGS_REVERSED
#ifdef STACK_BOUNDARY
/* If we push args individually in reverse order, perform stack alignment
before the first push (the last arg). */
if (argblock == 0)
anti_adjust_stack (GEN_INT (args_size.constant
- original_args_size.constant));
#endif
#endif
#ifdef PUSH_ARGS_REVERSED
inc = -1;
argnum = nargs - 1;
@ -2484,6 +2522,16 @@ emit_library_call_value (va_alist)
NO_DEFER_POP;
}
#ifndef PUSH_ARGS_REVERSED
#ifdef STACK_BOUNDARY
/* If we pushed args in forward order, perform stack alignment
after pushing the last arg. */
if (argblock == 0)
anti_adjust_stack (GEN_INT (args_size.constant
- original_args_size.constant));
#endif
#endif
#ifdef PUSH_ARGS_REVERSED
argnum = nargs - 1;
#else